How does slice notation in Python work

Question

Can someone help me with the slice notation?

To me, this notation needs a bit of picking up.

It looks extremely powerful, but I haven't quite got my head around it.

Answer 1

The Python tutorial talks about it (scroll down a bit until you get to the part about slicing).

The ASCII art diagram will help you get a clear idea on how does this notation work:

 +---+---+---+---+---+---+
 | P | y | t | h | o | n |
 +---+---+---+---+---+---+
 0   1   2   3   4   5   6
-6  -5  -4  -3  -2  -1